Self-cleaning drag-scraper bucket.



M. H. MORSE.

SELF CLEANING DRAG SUEAPER BUCKET.

APPLICATION FILED JUNE17, 1913 III U FALQI Patented Nov. 11, 1913.

. SHEETS-SHEETL is I I l I I I I I I I I I l I I I I I I I I I I I II I W 51 I I M W Y I ,1 IHI g I}. I IHI I I i n I I l I W/T/VESSES ATTORNEYS M. H. MORSE.

SELF CLEANING DRAG SCRAPBR BUCKET.

APPLICATION FILED JUNE 1']. 1913. Lgyfi hfw Patented NW. N, 1913.

2 SHEETSSHEET Wm Z7! 6105153 310782? ATTORNEYS lid titll tili MATHEW HY. MORSE, F ALGIERS, LOUISIANA.

SELF-CLEANING DRAG-SCRAPER BUCKET.

increase.

Specification of Letters Patent.

ltatcnted it or. 1 1, 1.913.

Application filed June 17, 1913. Serial No. 77%,164.

To all whom it may concern:

Be it known that I, MATHEW H. Monsn, a citizen of th United States, and a resident of Algiers, in the parish of Orleans and State of Louisiana, have invented. a new and lmproved Self-Cleaning Drag- Ecraper Bucket, of which the following is a full, clear, and exact description...

This invention relates to excavating or dredging devices and has particular reference to the construction of buckets or skips.

Among the objects of this invention is to devise a bucket having means associated therewith for automatic operation. whereby the contents of the bucket, if of a sticky nature, will be dragged or scraped therefrom at the dumping operation.

A further object of this invention is to so improve this character of devices as to render them more satisfactory and eiiicient in practical operation.

The foregoing and other objects of this invention will he hereinafter more fully described and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference indicate corresponding parts in all the views, and in which Figure 1 is a side elevation of a preferred form of this invention shown in excavating or carrying position, a corner of the device being broken away to disclose an end view of the scraper; Fig.2 is a rear elevation of the same; Fig. 3 is a longitudinal section showing the bucket in dumping position, this view being on a smaller scale than Figs. 1 and 2; Fig. 1 is a detail indieating the manner of operating the, scraper, this view showing a portion of the sideof the bucket and guide rails in section; and Fig. 5 is a detail of one of the scraper han er blocks.

Tie several parts of the device maybe made of any suitable materials and the rel ative sizes and proportions thereof may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully set forth and specifically claimed. I Wish it to be understood, also, that while I use the term chains in this specification, such term is to be interpreted broadly enough to cover any suitable flexible connections, the invention not being dependent upon any particular form of such devices.

The bucket proper is shown as being of a substantially rectangular construction and comprises a bottom and side walls 11 and 12. Along the upper edge of each of the side walls and preferably parallel thereto is a guide rail 13, the ends of which are secured to brackets 14 and 15 at the front and rear ends respectively of the bucket. Said brackets are shown as connected by means of rivets or bolts 16 to the upper corners of each side wall of the bucket.

A pair of guide bars in the form of angle irons 17 and 18 are secured upon the inner vertical face of each of the walls and extend along the middle portion thereof in spaced parallel relation to each other from one end of the bucket to the other.

The main hanger for the bucket comprises a pair of chains 19 connected at 20 upon the outer sides of the side walls 11 and 12 and closely adjacent the rear end of the bucket, as shown especially in Fig. 1. Other chains 19 constitute substantially continuations of the chains 19 and are connected to the upper ends of the chains 19 through a spreader 21 above the bucket, and thence said auxiliary chains 19 converge and are connected to a ring 22 to which the lifting or carrying mechanism may be connected.

At 23 1 show a scraper which conforms to the inner cross sectional area of the bucket and operates in a plane perpendicular to the bottom of the bucket and is adapted to be reciprocated from one end thereof to the other. The ends of the scraper are notched as shown at :21 to span the guide rails 17 and 18, and adjacent to such notched portion at each end is connected a hanger block 25 having a stud Q6 seated in a draft block 27 which operates or slides between a the adjacent pair of guide rails 17 and 18.

As a means for controlling the position and function of the scraper 23 I provide a bridle which includes a plurality of chains as follows: A pair of chains 28 are connected at 29 to the rear ends of the blocks 27 and extend thence around or over antifriction pulleys 30 and 31. Each pulley 30 is journaled in a bracket 32 at the rear end of the bucket, and each pulley 31 is mounted on the aforesaid bracket 1 just above the bracket 32. Said chains 28 extend upwardly from the pulleys 31 and are connected at their upper ends to a spreader 33. Aux1liary chains 28, constituting extensions of the chains 28, extend from the ends of the spreader 33 to the ring 22. another pair ttti lldd' ion of chains 34 are connected at 35 to the front ends of the blocks 27 and extend thence be tween the guide rails 17 and 18 to and over antifriction rollers 36 and 37 which occupy positions at the frontend of the bucket cor responding to the positions of the rollers 30 and 31 at the rear end of the bucket. The rollers 36 are journaled in brackets 38 and the rollers 37 in the aforesaid brackets 14. Each chain 34 extends from its roller 37 to a ring 39 which is connected to and guided along the rail 13 by means of a link 40. Other chains 34 extend from the rings 39 to the ring 22 and constitute in effect continuations of the chains 34. A pair of draft chains 41 and 42 are connected respectively to the ring 39 and the bracket 38, the latter connection being through a pin 43. The draft chains are arranged in pairs on opposite sides of the bucket, each pair being arranged as shown in Fig. 1.

When the bucket is in filling or digging position and power is applied to the draft chains 41 and 42, the hoisting or carrying mechanism being out of operation, the bucket will be moved in the direction of the arrow on Fig. 1, and the material entering the bucket will force the scraper 23 to the rear end, as indicated in Fig. 1, where it will constitute substantially a back wall. During this operation the chains 34 will move rearwardly over the pulleys 36 and 37, causing the ring 39 and link 40 to glide forwardly along each rail 13 until the link 40 reaches the end thereof which will limit the backward movement of the scraper.

The draft upon the two chains 41 and 42 will effect 'or permit this operation of the scraper. Sufficient power being exerted upwardly upon the ring 22, the chains 28 will be made to assume the position shown in Fig. 1, and in this position of the bucket it bucket through the open front end. During along said walls, a scraper cooperating wit this operation the links 40 glide rearwardly along the guide rails 13.

Having thus described my invention, I claim as new and desire to secure by Letters Patent i 1. In a device of the character setforth, the combination of a bucket including a bottom and side walls, guiding means extendin said guiding means and movable over the bottom of the bucket longitudinally thereof, draft means to cause the bucket to fill,

hanger means to support the main portion of the bucket and its load, and a bridle connected to the scraper both in the front. and the rear thereof, said bridle being guided over the ends of the bucket and connected to the hanger mechanism.

2. In a device of the character set forth, the combination of a bucket, brackets at the ends of the bucket, a scraper extending transversely of the bucket and movable longitudinally therein from one end of the bucket. to the other, chains attached to the scraper and extending thence over the brackets at the ends of the bucket, hanger mechanism secured to the bucket adjacent one end thereof, said chains being connected to the hanger mechanism above the brackets,

.and draft means for the end of the bucket tending across the interior of thebucket and movable from one end thereof to the other, a guide rail secured to the top of the bucket and extending parallel thereto, main supporting devices for the bucket connected adjacent one end thereof, draft means for the opposite end of the bucket, a bridle including flexible devices connected to the front and rear portions of the scraper and extending thence to the ends of the bucket and thence to the supporting devices, and a link connected to the bridle and slidable along said guide rail.

4. In a device of the class set forth, the combination of a bucket, self-acting scraping means within the bucket, supporting devices for the bucket attached adjacent one end thereof, guide means extending along the top of the bucket, flexible connections extending from the front and the rear of the scraping means, thence over the ends of the bucket and thence to the supporting devices, and a slide associated with the guiding means and connected to said flexible devices whereby, when the bucket issupported upon the supporting devices, said slide will move along said guiding means and cause the operation of the scraping devices.

5. In a self-cleaning excavator bucket, the combination of a substantially rectangular bucket proper having a bottom and side walls, a scraper Within the bucket and conforming to the space between the side walls, antifriction devices journaled upon the ends of the side Walls, chains connected to the front and rear portions of the scraper and extendin thence over and around said antifriction evices, guiding means secured along the upper edges of the side walls, slides movable along said guiding means, certain of said chains being connected to said slides, supporting devices connected adjacent one end of the bucket, said chains being connect- In testimony whereof I have eigmfl my ed above the bucket to the supporting dename to this specification in the presence cf vices wherebmwhen the bucket tilts with two subscrib' wimwes.

respect to the supporting devices, said il W MOBSE. chains will cause the reciprocaticn of the Witnesses:

scraper over the bottom of the bilcket, and Mum A. Home,

draft means connected to the bucket. 

